Heat sink base and heat sink

Abstract

Disclosed are a heat sink base and a heat sink. The heat sink base includes a base body. The bottom of the base body is provided with at least one protruded structure, and the bottom of the base body abuts against the top of the CPU. Each of the at least one protruded structure includes a gentle region with a protrusion, and a slope region surrounding the protruded gentle region with the protrusion. The gentle region of the protruded structure abuts against a high heat flux region at the top of the CPU, thus forming a region with relatively high pressure and relatively stable pressure compared with the slope region. Therefore, the heat sink base provided by the present invention has a simple and reasonable structure, and can efficiently dissipate the heat generated by the CPU, thus improving the cooling efficiency and obtaining more stable and more consistent cooling performance.

What is claimed is: 
     
         1 . A heat sink base, comprising a base body, wherein the bottom of the base body is provided with at least one protruded structure, and the bottom of the base body abuts against the top of a CPU; each of the at least one protruded structure comprises a gentle region with a protrusion and a slope region located on the periphery of the gentle region;
 the gentle region of the protruded structure abuts against a high heat flux region at the top of the CPU, thus forming a region with relatively high pressure and relatively stable pressure compared with the slope region.   
     
     
         2 . The heat sink base according to  claim 1 , wherein the gentle region of the protruded structure is located on an internal region of the protruded structure, and a projection of the slope region is located on two sides, three sides, or the periphery of a projection of the gentle region. 
     
     
         3 . The heat sink base according to  claim 1 , wherein the height of a geometric center point of the gentle region of the protruded structure is greater than or equal to that of the edge of the region, and on a contour line of either side of a horizontal direction of any profile passing through the geometric center point, an absolute value of a vertical height difference corresponding to a unit horizontal distance of any local range in the gentle region is smaller than an absolute value of a vertical height difference corresponding to a unit horizontal distance of any local range in the slope region. 
     
     
         4 . The heat sink base according to  claim 1 , wherein the center of the gentle region of the protruded structure abuts against the center of the high heat flux region at the top of the CPU, thus forming a region with relatively high pressure and relatively stable pressure compared with the slope region. 
     
     
         5 . The heat sink base according to  claim 1 , wherein the center of the gentle region of the protruded structure abuts against the position close to the center of the high heat flux region at the top of the CPU, thus forming a region with relatively high pressure and relatively stable pressure compared with the slope region. 
     
     
         6 . The heat sink base according to  claim 1 , wherein the projection area of the gentle region of the protruded structure is smaller than the area of the top of the CPU. 
     
     
         7 . The heat sink base according to  claim 1 , wherein a projection form of the gentle region of the protruded structure comprises: a circle, an ellipse or a polygon. 
     
     
         8 . The heat sink base according to  claim 1 , wherein a profile counter line of a gentle region part of the protruded structure comprises: a straight line, an arc line or a broken line. 
     
     
         9 . The heat sink base according to  claim 1 , wherein the area of the gentle region of the protruded structure is 20 mm 2  to 254 mm 2 . 
     
     
         10 . The heat sink base according to  claim 1 , wherein the area of the gentle region of the protruded structure is 20 mm 2  to 177 mm 2 . 
     
     
         11 . The heat sink base according to  claim 1 , wherein the area of the gentle region of the protruded structure is 20 mm 2  to 113 mm 2 . 
     
     
         12 . The heat sink base according to  claim 1 , wherein the area of the gentle region of the protruded structure is 20 mm 2  to 79 mm 2 . 
     
     
         13 . The heat sink base according to  claim 1 , wherein the area of the gentle region of the protruded structure is 20 mm 2  to 50 mm 2 . 
     
     
         14 . A heat sink for cooling a CPU, comprising a base body, wherein the bottom of the base body is provided with at least one protruded structure, and the bottom of the base body abuts against the top of a CPU; each of the at least one protruded structure comprises a gentle region with a protrusion and a slope region located on the periphery of the gentle region;
 the gentle region of the protruded structure abuts against a high heat flux region at the top of the CPU, thus forming a region with relatively high pressure and relatively stable pressure compared with the slope region.   
     
     
         15 . The heat sink according to  claim 14 , wherein the gentle region of the protruded structure is located on an internal region of the protruded structure, and a projection of the slope region is located on two sides, three sides or the periphery of a projection of the gentle region. 
     
     
         16 . The heat sink according to  claim 14 , wherein the height of a geometric center point of the gentle region of the protruded structure is greater than or equal to that of the edge of the region, and on a contour line of either side of a horizontal direction of any profile passing through the geometric center point, an absolute value of a vertical height difference corresponding to a unit horizontal distance of any local range in the gentle region is smaller than an absolute value of a vertical height difference corresponding to a unit horizontal distance of any local range in the slope region. 
     
     
         17 . The heat sink according to  claim 14 , wherein the center of the gentle region of the protruded structure abuts against the center of the high heat flux region at the top of the CPU, thus forming a region with relatively high pressure and relatively stable pressure compared with the slope region. 
     
     
         18 . The heat sink according to  claim 14 , wherein the center of the gentle region of the protruded structure abuts against the position close to the center of the high heat flux region at the top of the CPU, thus forming a region with relatively high pressure and relatively stable pressure compared with the slope region. 
     
     
         19 . The heat sink according to  claim 14 , wherein a projection form of the gentle region of the protruded structure comprises: a circle, an ellipse, or a polygon. 
     
     
         20 . The heat sink according to  claim 14 , wherein a profile contour line of a gentle region part of the protruded structure comprises: a straight line, an are line, or a broken line. 
     
     
         21 . The heat sink according to  claim 14 , wherein the projection area of the gentle region of the protruded structure is smaller than the area of the top of the CPU. 
     
     
         22 . The heat sink according to  claim 14 , wherein the area of the gentle region of the protruded structure is 20 mm 2  to 254 mm 2 . 
     
     
         23 . The heat sink according to  claim 14 , wherein the area of the gentle region of the protruded structure is 20 mm 2  to 50 mm 2 . 
     
     
         24 . The heat sink according to  claim 14 , further comprising:
 a cooling fin group, arranged at one end away from the base body:   a heat pipe group, comprising at least one heat pipe, wherein the heat pipe comprises a heat adsorption section and a cooling section, the heat adsorption section is arranged on the base body, and the cooling section is arranged in the cooling fin group; and   a fixing assembly, configured to fix the base body to the position above the CPU.   
     
     
         25 . The heat sink according to  claim 14 , further comprising:
 a cooling part, provided with a water inlet and a water outlet;   a heat adsorption part, provided with a water inlet and a water outlet, wherein a water pump is arranged inside the heat adsorption part, and the heat adsorption part is arranged on one end of the base body; and   a pipeline part, comprising a first pipeline and a second pipeline, wherein one end of the first pipeline and one end of the second pipeline are connected to the water inlet and the water outlet of the cooling part, respectively; and the other end of the first pipeline and the other end of the second pipeline are connected to the water outlet and the water inlet of the heat adsorption part, respectively; and under the action of the water pump, cooling liquid circulates among the cooling part, the pipeline part and the heat absorption part.